USB adapter apparatus



FIG. 1 is a perspective back view of an USB adapter apparatus;

FIG. 2 is a perspective front view thereof;

FIG. 3 is a partially exploded back view thereof; and,

FIG. 4 is a side view thereof.

The broken lines are included to show environmental structure and form no part of the claimed design. The drawings and descriptions represent the left side of the embodiment. The claim is also for a mirror image right side thereof. 

CLAIM The ornamental design for an USB adapter apparatus, as shown and described. 